Bergey's manual of determinative bacteriology : a key for the identification of organisms of the class schizomycetes / arranged by a committee of the Society of American Bacteriologists.

  • Bergey, D. H. (David Hendricks), 1860-1937.
Date:
1923
Catalogue details

Licence: In copyright

Credit: Bergey's manual of determinative bacteriology : a key for the identification of organisms of the class schizomycetes / arranged by a committee of the Society of American Bacteriologists. Source: Wellcome Collection.

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    Orla-Jensen (Die Hauptlinien des nattirlichen Bakterien- systems, Centralblatt fiir Bakteriologie, II abt. 22, 1919, 305) has arranged an extensive classification of the bacteria on morpho¬ logic, biologic and biochemic characters, as follows: A. Order Cephalotrichinae. Monotrichous or lophotrichous when flagella are present. Life energy derived mainiy from oxidative processes without producing notable amounts of unoxidized split products. Water or moist earth forms, with the exception of a few peculiar plant and animal parasites. Grow poorly, or not at all, on artificial media because these contain too much organic matter. Spore formation is seen only in a few sulphur- free spirilla. Family I. Oxydobacteriaceae. Obligate aerobes, deriving growth energy by direct oxidation of simple compounds of carbon, hydrogen and nitrogen. Mostly short rods, unbranched, monotrichous except genera 4 and 7. Genus 1. Methanomonas, oxidize methane to carbon dioxide and hydrogen. 2. Carboxydomonas, oxidize carbon monoxide to carbon dioxide. 3. Hydrogenomonas, oxidize hydrogen to water. 4. Acetomonas, oxidize alcohol to acetic acid. 5. Nitrosomonas, oxidize ammonia to nitrites. 6. Nitromonas, oxidize nitrites to nitrates. 7. Azotomonas, nitrogen-fixing bacteria. Family II. Actinomycetes. Genus 1. Rhizomonas, symbiotic on roots of legumes. 2. Corynemonas, diphtheria group. 3. Mycomonas, tuberculosis group. 4. Actinomyces, “ray” fungus and soil forms. Family III. Thiobacteriaceae. Colorless sulphur bacteria. Non- filamentous. Genus 1. Sulphomonas, oxidize hydrogen sulphid to sulphur. 2. Thiomonas. 3. Thiococcus. 4. Thiospirillum. Family IV. Rhodobacteriaceae. Red sulphur bacteria. Non- filamentous. Genus 1. Rhodomonas (Chromatium). 2. Rhabdomonas (Rhabdochromatium). 3. Rhododictyon (Thiodictyon). 4. Amoebomonas (Amoebobacter). 5. Rhodothece (Thiothece). 6. Rhodopolycoccus (Thiopolycoccus).